Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 20:00
Static task
static1
Behavioral task
behavioral1
Sample
d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe
Resource
win10v2004-20240426-en
General
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Target
d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe
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Size
1.9MB
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MD5
2e655013822c778d578c8e4854ec1acc
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SHA1
d25cbcf8b3c8a0778b21854b4540fc00178e3ff4
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SHA256
d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c
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SHA512
f20beae81cb8fe261bd25080408f9a101295797a850b02e206f6cfe53fb68a3fabfac5edc889c01efc4f5edc08b8e38b2c0a54c999892c29aa4aa0f09f03a501
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SSDEEP
49152:CdKfTn6vCJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/4580-2-0x0000000003FC0000-0x0000000004109000-memory.dmp family_vidar_v7 behavioral1/memory/3172-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3172-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat2F7C.tmppid process 3172 kat2F7C.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exedescription pid process target process PID 4580 set thread context of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat2F7C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat2F7C.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat2F7C.tmppid process 3172 kat2F7C.tmp 3172 kat2F7C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exedescription pid process target process PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp PID 4580 wrote to memory of 3172 4580 d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe kat2F7C.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe"C:\Users\Admin\AppData\Local\Temp\d3f045a8da693b81dd4a8989c5420e99491ad3704d8c7558eefe054ded17972c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4580 -
C:\Users\Admin\AppData\Local\Temp\kat2F7C.tmpC:\Users\Admin\AppData\Local\Temp\kat2F7C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3172
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat2F7C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3172-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-21-0x000000001DC70000-0x000000001DECF000-memory.dmpFilesize
2.4MB
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memory/3172-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3172-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4580-0-0x0000000002250000-0x0000000002251000-memory.dmpFilesize
4KB
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memory/4580-2-0x0000000003FC0000-0x0000000004109000-memory.dmpFilesize
1.3MB
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memory/4580-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB